<https://www.q8oils.com/metalworking/leaching-cobalt/#webpage>
<http://schema.org/description>
"The cobalt that is released into metalworking fluid (MWF) as a result of the shaping and sharpening processes may dissolve and circulate in the fluid or become sediment at the bottom of the filter into which it was released."
<https://www.q8oils.com/metalworking/leaching-cobalt/>